Remove all echo statements from Dockerfile

Minimal Dockerfile without debug output.

Co-Authored-By: Claude <noreply@anthropic.com>

Dockerfile

@@ -2,7 +2,7 @@ FROM node:20-slim
 
 ENV DEBIAN_FRONTEND=noninteractive
 
-# Build timestamp: 2026-01-13T00:30
+# Build timestamp: 2026-01-13T00:35
 
 WORKDIR /app
 
@@ -12,34 +12,23 @@ RUN npm install -g esbuild
 # Copy backend package.json and install deps at root level
 COPY trigo-web/backend/package.json ./package.json
 RUN npm install --omit=dev
-RUN echo "=== Step 1: Dependencies installed ==="
 
-# Copy backend source
-RUN mkdir -p backend
+# Copy backend source and build
+RUN mkdir -p backend backend/dist/backend/src
 COPY trigo-web/backend/src/ ./backend/src/
-RUN echo "=== Step 2: Backend source copied ==="
-
-# Build backend with esbuild
-RUN mkdir -p backend/dist/backend/src && \
-    esbuild backend/src/server.ts --bundle --platform=node --target=node20 --format=esm \
+RUN esbuild backend/src/server.ts --bundle --platform=node --target=node20 --format=esm \
     --outfile=backend/dist/backend/src/server.js \
     --external:express --external:socket.io --external:cors --external:dotenv --external:uuid
-RUN echo "=== Step 3: Backend built ==="
 
-# Copy entire frontend dist directory at once (no wildcards)
+# Copy frontend dist
 COPY trigo-web/app/dist/ ./app/dist/
-RUN echo "=== Step 4: Frontend dist copied ===" && ls -la app/dist/
 
-# Copy public folder
+# Copy public and other files
 COPY trigo-web/public/ ./public/
-RUN echo "=== Step 5: Public copied ==="
-
-# Copy env and other files
 COPY trigo-web/.env ./.env
 COPY trigo-web/backend/.env ./backend/.env
 COPY trigo-web/backend/.env.local ./backend/.env.local
 COPY trigo-web/inc/ ./inc/
-RUN echo "=== Step 6: All files copied ==="
 
 ENV PORT=7860
 ENV HOST=0.0.0.0